arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts
Extension
.dts
Size
11148 bytes
Lines
559
Domain
Architecture Layer
Bucket
arch/arm
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * at91-sama7g54_curiosity.dts - Device Tree file for SAMA7G54 Curiosity Board
 *
 * Copyright (C) 2024 Microchip Technology Inc. and its subsidiaries
 *
 * Author: Mihai Sain <mihai.sain@microchip.com>
 *
 */
/dts-v1/;
#include "sama7g5-pinfunc.h"
#include "sama7g5.dtsi"
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/mfd/atmel-flexcom.h>
#include <dt-bindings/pinctrl/at91.h>

/ {
	model = "Microchip SAMA7G54 Curiosity";
	compatible = "microchip,sama7g54-curiosity", "microchip,sama7g5", "microchip,sama7";

	aliases {
		serial0 = &uart3;
		i2c0 = &i2c10;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};

	gpio-keys {
		compatible = "gpio-keys";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_key_gpio_default>;

		button-user {
			label = "user-button";
			gpios = <&pioA PIN_PD19 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_PROG1>;
			wakeup-source;
		};
	};

	leds {
		compatible = "gpio-leds";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_led_gpio_default>;

		led-red {
			color = <LED_COLOR_ID_RED>;
			function = LED_FUNCTION_POWER;
			gpios = <&pioA PIN_PD13 GPIO_ACTIVE_HIGH>;
			default-state = "off";
		};

		led-green {
			color = <LED_COLOR_ID_GREEN>;
			function = LED_FUNCTION_BOOT;
			gpios = <&pioA PIN_PD14 GPIO_ACTIVE_HIGH>;
			default-state = "off";
		};

		led-blue {
			color = <LED_COLOR_ID_BLUE>;
			function = LED_FUNCTION_CPU;
			gpios = <&pioA PIN_PB15 GPIO_ACTIVE_HIGH>;
			linux,default-trigger = "heartbeat";
		};
	};

Annotation

Implementation Notes